Books for Prep

1.

Coding Theory and Cryptography: The Essentials, Second Edition (Pure and Applied Mathematics)
by: D.C. Hankerson, Gary Hoffman, D.A. Leonard, Charles C. Lindner, K.T. Phelps, C.A. Rodger, J.R. Wall
August 04, 2000

2.

Coding Theory: The Essentials (Pure and Applied Mathematics : a Series of Monographs and Textbooks, 150)
by: D. G. Hoffman, D.A. Leonard, C.C. Lidner, K.T. Phelps, C.A. Rodger, Wal
August 30, 1991